Rotor assemblies

• US 4,900,292 A
• Filed: 05/04/1988
• Issued: 02/13/1990
• Est. Priority Date: 05/05/1987
• Status: Expired due to Term

• Current Assignee: British Technology Group Ltd.
• Original Assignee: National Research Development Corporation
• Inventors: Inskip, Peter F., Berry, Paul S., Frost, Derek J.
• Primary Examiner(s): Bui, Thuy M.
• Application Number:
  US07/190,141
• Time in Patent Office: 650 Days
• Field of Search: 474/69-71, 474/84-89, 56/103, 56/104, 56/219, 17/11.1 R, 119/82
• US Class Current: 474/84
• CPC Class Codes: A01K 45/005 Harvesting or transport of poultry

Abstract

A rotor assembly for use in a poultry harvester, comprising first and second rotors arranged side by side about a center line of the assembly for rotation about vertical or predominantly vertical axes, a third rotor equispaced from the first and second rotors in a direction along the center line of the assembly, and drive means for rotating the third rotor in a clockwise or anticlockwise sense, as desired, during operation of the assembly, the drives for the first and second rotors being derived from the motion of the third rotor and being operative to counter-rotate the first and second rotors in rotational senses which remain unaltered irrespective of the direction of rotation of the third rotor at any given moment, each rotor providing a continuous array of radially-extending guide elements closely adjacent and/or abutting and/or intermeshing with the guide elements of the other rotors.

Claims

1. A rotor assembly for use in a poultry harvester, the assembly comprising first and second rotors U.S. Appln. 07/190,141--Berry et al arranged side by side about a center line of the assembly for rotation about a vertical or predominantly vertical axes, a third rotor equispaced from the first and second rotors in a direction along the center line of the assembly, and drive means for rotating the third rotor around a vertical axis in a clockwise or counterclockwise sense, as desired, during operation of the assembly, the drives for the first and second rotors being derived from the motion of the third rotor and being operative to counter-rotate the first and second rotors in rotational senses which remain unaltered irrespective of the direction of rotation of the third rotor at any given moment, each rotor providing a continuous array of radially-extending guide elements closely adjacent and/or abutting and/or intermeshing with the guide elements of the other rotors.

2. A poultry harvester including at its front end a rotor assembly as claimed in claim 1 in which the third rotor leads the other two rotors and the mutually adjacent peripheral regions of the first and second rotors in operation more rearwardly away from the third rotor.

3. A poultry harvester as claimed in claim 2 in which the rotation axis of the third rotor is substantially vertical while the rotation axes of the first and second rotors incline upwardly and forwardly.

4. A poultry harvester as claimed in claim 2 including at its rear end a rotor assembly in which the third rotor trails the other two rotors and the mutually adjacent peripheral regions of the first and second rotors in operation move rearwardly towards the third rotor.

10. A poultry harvester including at its front end a rotor assembly as claimed in claim 2 in which the third rotor leads the other two rotors and the mutually adjacent peripheral regions of the first and second rotors in operation move rearwardly away from the third rotor.

11. A poultry harvester a claimed in claim 10 including at its rear end a rotor assembly in which the third rotor trails the other two rotors and the mutually adjacent peripheral regions of the first and second rotors move rearwardly toward the third rotor.

5. A poultry harvester including at its rear end a rotor assembly comprising first and second rotors arranged side by side about a center line of the assembly for rotation about a vertical or predominantly vertical axes, a third rotor equispaced from the first and second rotors in a direction along the center line of the assembly, and drive means for rotating the third rotor in a clockwise or counterclockwise sense, during operation of the assembly, the drives for the first and second rotors being derived from the motion of the third rotor and being operative to counter-rotate the first and second rotors in rotational senses which remain unaltered irrespective of the direction of rotation of the third rotor at any given moment, each rotor providing a continuous array of radially-extending guide elements closely adjacent and/or abutting and/or intermeshing with the guide elements of the other rotors, and in said harvester, the third rotor trails the other two rotors and the mutually adjacent peripheral regions of the first and second rotors in operation move rearwardly towards the third rotor.

6. A poultry harvester as claimed in claim 5 in which the rotation axes of all three rotors are substantially vertical.

7. A rotor assembly for use in a poultry harvester, the assembly comprising first and second rotors arranged side by side about a center line of the assembly for rotation about a vertical or predominantly vertical axes, a third rotor equispaced from the first and second rotors in a direction along the center line of the assembly, and drive means for rotating the third rotor in a clockwise or counterclockwise sense, as desired, during operation of the assembly, the drives for the first and second rotors being derived from the motion of the third rotor and being operative to counter-rotate the first and second rotors in rotational senses which remain unaltered irrespective of the direction of rotation of the third rotor at any given moment, each rotor providing a continuous array of radially-extending guide elements closely adjacent and/or abutting and/or intermeshing with the guide elements of the other rotors, and further in which the drives to the first and second rotors each include at least one of a sprag clutch and like one-way transmission means interposed between first and second elements of the drive, one of the one-way transmission means always being operative when the other is inoperative and vice versa, the first element of each said drive being driven from the third rotor at any given moment, and the rotor-connected second element of the drive being either driven, if the respective one-way transmission is operative, in the same rotational sense as the associated first element or, if the respective one-way transmission is inoperative, being driven in the opposite sense from the second element of the drive.

8. A poultry harvester including at its rear end a rotor assembly as claimed in claim 7 in which the third rotor trails the other two rotors and the mutually adjacent peripheral regions of the first and second rotors in operation move rearwardly towards the third rotor.

9. A poultry harvester as claimed in claim 8 in which the rotation axes of all three rotors are substantially vertical.